2007 Bmw 550i Base Sedan 4-door 4.8l W/h.u.d. on 2040-cars

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Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.

Guess what BMW's '30 Years M3' special edition celebrates

It's anniversaries on top of anniversaries at BMW in 2016. The company celebrated its 100th year of existence at an elaborate celebration in March, last week we got a new hommage concept to mark five decades since the iconic 2002 debuted, and now, in time for the holiday weekend, there's this limited-edition M3. Wait, that's not what this holiday is for? This celebratory sports sedan gets the not-quite-grammatical name of "30 Years M3," which is totally grammatical when translated back into German ("30 Jahre M3"), and BMW plans to build just 500 of them for the whole world. We don't yet know how many will come to the US, but seeing as ours is one of BMW's larger markets, we are at least banking on "some." What makes it neat besides rarity? It comes with pretty much everything you can get on a standard M3, including the Competition package with its 444-horsepower engine tune, Adaptive M suspension, and Active M differential. To that it adds an M exhaust with black tips, the requisite dash plaque, shouty door sills, and unique "30 Years M3" badges on the fender gills. The interior has special seats with gray or blue inserts and stitched headrests, plus seat belts with M three-stripe trim. (And yes, the cars in the photos say "30 Jahre M3," but we already explained that, right?) And then there's the paint. It will be available in Macao Blue metallic, a color that was available for special order on the E30 M3. And if there's any car that deserves some celebration, it's the original M3. Happy 30th, neat car. Related Video:

2014 BMW M6 Gran Coupe

Is This A Great Idea For An M Model?
The BMW 6 Series Gran Coupe is already an issue of large debate. The essential business case for the car is that it's more distinctive than a straight 5 or 6 Series, and has much of the sense of space and luxury of a 7 Series. It has the wheelbase of a 5 Series, the relative width of a 6 Series, and an exterior length close to the standard wheelbase 7 Series. And, as we reported in our drive of the 640i Gran Coupe in May 2012, the 6 Series Gran Coupe costs pretty much the same as the 7 Series, engine trim for engine trim. The sedan (coupe?) is therefore a proposal clearly meant for an extremely particular clientele. There's no news yet on how well exactly the 6 Series Gran Coupe is selling in its chief markets, but we are curious. The Germans frequently tend not to break out their sales figures that way, mixing sales of the Gran Coupe in with the two-door 6 Series.
And, so, we have now arrived at the inevitable point where the M version must be introduced. Say howdy to the $113,000 2014 BMW M6 Gran Coupe (actually $115,195 for starters with all of the taxes added). That's $4,650 more than the also highly priced M6 coupe. Let the vehement debates begin. The upcoming 2014 Audi RS7 should be priced right at this level as well, and the Mercedes-Benz CLS63 AMG (perhaps with an S iteration in the next allotment we get Stateside) should go for roughly the same.